Stephen Lacey sees some:
If you’ve ever walked into your office building on a weekend, you’ve probably experienced one of the most easily identifiable energy-efficiency problems. Chances are good that the empty building was as warm or cool as it normally is on the weekday when the building is at full occupancy — sucking all that electricity to keep the building comfortable for no one except you. Lucky you.
[FirstFuel] remotely examined utility data for 60 million square feet of commercial buildings across the U.S. When it analyzed the sample buildings, it found that slightly more than half of energy efficiency opportunities could be realized with simple operational improvements.